Home / 216,156.76-324,236.09-89,796.90

Finding the Fourth Proportional to 216,156.76, 324,236.09 and 89,796.90

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Solution

The fourth proportional to 216,156.76, 324,236.09 and 89,796.90 is: 134,695.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,156.76 : 324,236.09 = 89,796.90 : x
  2. Step 2: Convert to fraction form
    216,156.76/324,236.09 = 89,796.90/x
  3. Step 3: Cross multiply
    216,156.76x = 324,236.09 × 89,796.90
  4. Step 4: Simplify right side
    216,156.76x = 29,115,394,861.56
  5. Step 5: Solve for x
    x = 29,115,394,861.56/216,156.76
  6. Step 6: Final answer
    x = 134,695.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.